TY  - RPRT
TI  - Phosphate deposits of the Concepcion del Oro district, Zacatecas, Mexico
AU  - Cleaves Lincoln Rogers
AU  - Salvador Ulloa
AU  - Eugenio Tavera
PY  - 1952
DO  - 10.3133/ofr52131
UR  - https://pubs.usgs.gov/publication/ofr52131
ID  - ofr52131
ER  -